Project Frog, a green prefab building company based in San Francisco, was one of the runners-up. It makes affordable, highly energy-efficient buildings for schools, health care centers, and retail outlets.

Euros, private investments, telecoms as utility companies, and of course, Fukushima. 2011 has brought sweeping change to the world of green, and it's not even mid-year. A few trends that caught our eye. More